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Sulfanilic acid

CAS No. 121-57-3
Chemical Name: Sulfanilic acid
Synonyms: NSC 7170;sulfanilic;SUFANILIC ACID;4-SULFOANILINE;Sulfanilsaeure;p-Sulfoaniline;SULFANILIC ACID;SulfonamineAcid;SULPHANILIC ACID;SULFANILLIC ACID
CBNumber: CB1489237
Molecular Formula: C6H7NO3S
Formula Weight: 173.19
MOL File: 121-57-3.mol
Sulfanilic acid Property
Melting point : >300 °C(lit.)
density : 1.485
storage temp. : Store in dark!
solubility : 10g/l
pka: 3.24(at 25℃)
PH: 2.5 (10g/l, H2O, 20℃)
Water Solubility : 0.1 g/100 mL (20 ºC)
Merck : 14,8926
BRN : 908765
Stability:: Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference: 121-57-3(CAS DataBase Reference)
NIST Chemistry Reference: Benzenesulfonic acid, 4-amino-(121-57-3)
EPA Substance Registry System: Benzenesulfonic acid, 4-amino-(121-57-3)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes : C,Xi
Risk Statements : 36/38-43-34
Safety Statements : 26-36/37/39-45-37-24-36/37
RIDADR : UN 2790 8/PG 3
WGK Germany : 1
RTECS : WP3895500
TSCA : Yes
HS Code : 29214210
Hazardous Substances Data: 121-57-3(Hazardous Substances Data)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P272 Contaminated work clothing should not be allowed out of the workplace.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P321 Specific treatment (see … on this label).
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P333+P313 IF SKIN irritation or rash occurs: Get medical advice/attention.
P501 Dispose of contents/container to..…

Sulfanilic acid Chemical Properties,Usage,Production

Chemical Properties
greyish-white crystals or powder
A toxic metabolite of Tartrazine (T007700). Used as Ehrlich’s reagent, for detecting of nitrites. Antibacterial.
ChEBI: An aminobenzenesulfonic acid that is aniline sulfonated at the para-position.
General Description
White powder with faint purple tinge. Grayish-white flat crystals. Becomes anhydrous at around 212°F. Low toxicity (used medicinally).
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Sulfanilic acid is an amino acid. Reacts weakly with both acids and bases.
Fire Hazard
Flash point data for Sulfanilic acid are not available, however Sulfanilic acid is probably combustible.
Sulfanilic acid Preparation Products And Raw materials
Raw materials
Aniline Sulfuric acid
Preparation Products
Acid Orange 7 ACID YELLOW 17 Acid Orange 156 Direct Red Brown RN AURAMINE O Direct Blending Brilliant Red D-10BL REACTIVE GREEN 19 4-amino-1-naphthol Reactive Dark Blue M-2ge Sumilight Supra Orangl 2GL Acid Yellow 23 Methyl Orange CIBACRON BRILLIANT YELLOW 3G-P 4-Chlorobenzenesulfonic acid Fluorescent Brightener VBU DIRECT RED 80 8,8-Dimethoxy-2,6-dimethyloctan-2-ol Direct Blending Brilliant Red D-5BL Piperonyl aldehyde Reactive Red 15 4-Amino-benzenesulfonic acid monosodium salt N-Phenyl-1-naphthylamine 4-Amino-1,3-benzenedisulfonic acid sodium N-benzylsulphanilate C. I. Pigment Red 56 Food Yellow 3 Acid Yellow 199 Direct Blend Rubine D-BLL new red REACTIVE RED 4 p-Anisaldehyde Direct Blending Yellow D-3RNL 4-Chlorobenzenesulfonyl chloride Direct Violet 9 Reactive Violet 2 Direct Blending Scarlet D-GLN
Sulfanilic acid Suppliers      Global( 308)Suppliers     
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd. +86 (0)571-855 867 18
+86 (0)571-858 647 95 China 19953 60
Shenzhen Sendi Biotechnology Co.Ltd. 0755-23311925 18102838259
0755-23311925 CHINA 3230 55
Shanghai Yolne Chemical Co., Ltd. 021-61525205,62960152 QQ:1242926278,3060526242
021-52212593 China 9956 55
Codow Chemical Co.,Ltd. +86-20-38056109 / 3892 1903
+86-20-6261 9665 China 18462 55
Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333
021-50323701 China 25125 65
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96831 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) China 40403 62
3B Pharmachem (Wuhan) International Co.,Ltd. 86-21-50328103 * 801、802、803、804 Mobile:18930552037
86-21-50328109 China 15950 69
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 China 30314 84
TCI (Shanghai) Development Co., Ltd. 800-988-0390
021-67121385 China 22833 81
121-57-3(Sulfanilic acid)Related Search:
CHLORANTINE FAST RED 5B Eriochrome Black T ACID ORANGE 63 ACID YELLOW 25 REACTIVE BLUE 4 4-Aminobenzaldehyde p-Anisidine Folic acid O-SULFANILIC ACID,2-Aminobenzenesulfonic acid, o-Sulfanilic acid, Orthanilic acid,2-Aminobenzenesulfonic acid, o-Sulfanilic acid ASCORBICACID Stearic acid Citric acid SULFANILIC ACID SODIUM SALT 4-Aminobenzoic acid M-SULFANILIC ACID Sulfanilamide Sulfanilic acid ACETIC ACID
Building Blocks Analytical Reagents Analytical Chromatography Product Catalog BioChemical Biochemical Reagents for Identification 121-57-3 ANILINE-4-SULFONIC ACID ANILINE P-SULFONIC ACID 4-SULFOANILINE 4-AMINOBENZENESULPHONIC ACID 4-AMINOBENZENESULFONIC ACID 4-ANILINESULFONIC ACID SUFANILIC ACID SULFANILIC ACID SULFANILIC ACID TS SULFANILLIC ACID SULPHANILIC ACID P-SULFANILIC ACID P-ANILINESULFONIC ACID P-AMINOBENZENESULFONIC ACID NITRATE REAGENT B General Use Puriss p.a. Microbiology Organic Building Blocks Identification Tests & Reagents Sulfonic/Sulfinic Acids Sulfur Compounds 4-amino-benzenesulfonicaci Aniline-p-sulphonic acid aniline-p-sulphonicacid Kyselina sulfanilova kyselinasulfanilova p-Aminophenylsulfonic acid p-aminophenylsulfonicacid sulfanilic Sulfanilicacid,anhydrous Sulfanilicacidanhydrous Sulfanilsaeure p-Aminobenzene sulfonic acid anhydrous Sulfanilic acid 99.0+ % for analysis Sulfanilic acid 99+ % Sulphanillic Acid SULFONIC ACID SULFANILIC ACID ANHYDROUS ACS REAGENT SULFANILIC ACID, 99%, A.C.S. REAGENT SULFANILIC ACID STD SOLUTION 0.1 MOL/L N29, 1 L P-AMINOBENZENS SULFONIC ACID SulphanilicAcidA.R. SulphanilicAcid,>98% SulfanilicAcidMonohydrate SulphanilicAcidGr SulfonamineAcid Sulfanilic acid, reagent ACS SULFANILIC ACID, ANHYDROUS REAGENT (ACS) NH2C6H4SO3H Benzenesulfonic acid, 4-amino- sulfanilic acid solution
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